Noone hates an athletic QB. All QBs are athletic. I don't know if there is a non-athletic person in the NFL. There have been some great running QBs: Elway, Cunningham, Young, Tarkenton. But none of them, not even Cunningham, had a run first mentality. They were good QBs who could also stand in the pocket, be patient, let the play develop, THEN decide to run if it wasn't there. If you look at a guy like Vick, it looks obvious that he is ready to run. His mentality is just set that way. He has no patience and doesn't scan the field particularly well and depends too much on moving around to make passes when he should be letting plays develop to make his throws. He takes ALOT of hits and a lot of sacks because he doesn't have the patience to stand in there and deliver the ball. He has never developed a trust in the pocket because his natural first instinct is to take off. This has been embedded in his head. Also, even though Vick has a cannon arm, he is not particularly accurate nor is he consistent.
What really triggers these guys to take off so quickly is that the speed of the NFL is leaps and bounds above the college level and it just makes their natural defense kick in that much faster and they are off to the races. To top it all off, I just think Vick was and is over-rated anyway. He's simply not that good. He is living off Hype. Any other QB who is as inconsistent as he is would be deeper under the microscope.